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Finding the Fourth Proportional to 622,297.08, 858,780.90 and 367,647.66

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Solution

The fourth proportional to 622,297.08, 858,780.90 and 367,647.66 is: 507,360.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,297.08 : 858,780.90 = 367,647.66 : x
  2. Step 2: Convert to fraction form
    622,297.08/858,780.90 = 367,647.66/x
  3. Step 3: Cross multiply
    622,297.08x = 858,780.90 × 367,647.66
  4. Step 4: Simplify right side
    622,297.08x = 315,728,788,337.69
  5. Step 5: Solve for x
    x = 315,728,788,337.69/622,297.08
  6. Step 6: Final answer
    x = 507,360.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.